JOSA year 18 no. 4 (45)
eISSN 2068-3049

CONTENTS

SECTION A – Mathematics

1. THE NATURAL LIFT CURVES FOR THE SPHERICAL INDICATRICES OF THE TIMELIKE-SPACELIKE BERTRAND COUPLE IN MINKOWSKI 3-SPACE

(Mustafa Bilici, Evren Ergun, Mustafa Caliskan) / 799

2. BEHAVIOUR OF SOLUTIONS FOR A SYSTEM OF TWO HIGHER-ORDER DIFFERENCE EQUATIONS

(Yasin Yazlik, Durhasan T. Tollu, Necati Taskara) / 813

3. A METHOD FOR MANNHEIM OFFSETS OF RULED SURFACES

(Gulsum Yeliz Senturk, Salim Yuce) / 827

4. A DETAILED NUMERICAL STUDY ON GENERALIZED ROSENAU-KDV EQUATION WITH FINITE ELEMENT METHOD

(Seydi Battal Gazi Karakoc) / 837

5. APPROXIMATION BY THE SUMMATION INTEGRAL TYPE OPERATORS BASED ON LUPAS-SZASZ BASIS FUNCTIONS

(Nesibe Manav, Nurhayat Ispir) / 853

6. ON THE NATURAL LIFT CURVE AND THE INVOLUTE CURVE

(Evren Ergun, Mustafa Caliskan) / 869

7. LUCAS COLLOCATION METHOD FOR SYSTEM OF HIGH-ORDER LINEAR FUNCTIONAL DIFFERENTIAL EQUATIONS

(Muhammed Cetin, Burcu Gurbuz, Mehmet Sezer) / 891

8. TRAVELLING WAVE SOLUTIONS OF HIGHER ORDER NONLINEAR FRACTIONAL EVOLUTION EQUATION

(Kamran Ayub, Nawab Khan, M. Yaqub Khan, Qazi Mahmood Ul Hassan) / 911

9. AN EXTENSION OF A CLASS OF GENERATING FUNCTIONS FOR THE CESÀRO POLYNOMIALS OF THREE VARIABLES

(Nejla Ozmen, Esra Erkus-Duman) / 925

10. EIGENVALUES AND EIGENFUNCTIONS OF Q-DIRAC SYSTEM

(Fatma Hira) / 937

11. THE EIGENVALUES AND THE EIGENFUNCTIONS OF THE STURM-LIOUVILLE FUZZY PROBLEM WITH FUZZY COEFFICIENT BOUNDARY CONDITIONS

(Hulya Gultekin Citil, Nihat Altinisik) / 947

12. ON SOME FUZZY FRACTIONAL DIFFERENTIAL EQUATIONS USING DIFFERENTIAL TRANSFORM METHOD

(Kubra Ehsan, Jamshad Ahmad) / 959

13. BRONZE DIFFERENTIAL GEOMETRY

(Pradeep Kumar Pandey, Sameer) / 973

14. ANALYSIS APPLIED TO THE IMPACT OF DEPRECIATION METHODS OF IMMOBILIZED ASSETS ON FINANCIAL PERFORMANCE

(Maria Toma, Luiza Ionescu, Mathurin Founanou) / 981

15. E-BUSINESS – A VIRTUAL BRIDGE BETWEEN ORGANIZATIONS AND CUSTOMERS WITH REAL RESULTS - A MATHEMATICAL VIEW

(Nicoleta Valentina Florea, Mircea Constantin Duica, Doina Constanta Mihai, Dan Marius Coman) / 989

SECTION B – Chemistry

1. RHEOLOGICAL MATHEMATICAL MODELS OF DEPENDENCE DYNAMIC VISCOSITY – SHEAR RATE FOR SOYBEAN OIL

(Ioana Stanciu) / 1001

2. ENVIRONMENTAL ASSESSMENT OF HEAVY METALS ACCUMULATION IN THE NEARSHORE AND TYPICAL ESTUARINE ENVIRONMENT IN DAVAO CITY PHILIPPINES

(Venchie Badong, Kathleen Bersabal) / 1007

3. STUDY ON THE COLLAGEN FROM SKIN OF MARINE FISH FROM THE BLACK SEA

(Melat Cherim, Ergun – Yukmel Rasit) / 1015

4. COMPARATIVE MORPHOLOGY AND COMPOSITION OF 13TH-14TH CENTURIES POTTERY FROM INDIA AND SOUTHEAST ASIA

(Chitnarong Sirisathitkul, Yaowarat Sirisathitkul, Wannasarn Noonsuk) / 1025

5. PHYSICO-CHEMICAL CHARACTERIZATION OF THERAPEUTIC MUDS FROM BRASOV COUNTY

(Rodica Lupu (Meret), Ioana Daniela Dulama, Cristiana Radulescu, Ioan Alin Bucurica, Raluca Maria Stirbescu, Sofia Teodorescu) / 1033

6. CHEMISTRY - THE JOURNEY FROM CENTRAL SCIENCE TO CHEMOFOBIA; HOW SHOULD WE ADDRESS THIS?

(Bogdan-Catalin Serban, Octavian Buiu, Marius Bumbac, Cristina-Mihaela Nicolescu, Cornel Cobianu) / 1045

SECTION C – Physics

1. MODELING OF SURVIVAL TIME OF ORAL SQUAMOUS CELL CARCINOMAS (OSCC) IN HOSPITAL UNIVERSITI SAINS MALAYSIA USING MULTILAYER FEEDFORWARD NEURAL NETWORK

(Wan Muhamad Amir W Ahmad, Mohamad Arif Awang Nawi, Mohamad Shafiq Mohd Ibrahim, Zalila Ali, Nor Azlida Aleng, Adam Husein, Nurfadhlina Abdul Halim) / 1061

2. MODELLING OF HOUSEHOLD POWER CONSUMPTION AND ITS EFFECTS ON LOAD SHIFTING STRATEGIES

(Patrick Ozoh, Mark Apperley, Morufu Oyedunsi Olayiwola) / 1067

3. SOLITONS AND SHOCK WAVES SOLUTIONS FOR THE ROSENAU-KDV-RLW EQUATION

(Seydi Battal Gazi Karakoc, Fuzheng Gao, Samir Kumar Bhowmik) / 1073

4. HOUSEHOLD ALERT PREVENT AND COMBAT SYSTEM FOR FIRE HAZARDS AND GAS LEAKAGES

(Viorel Miron-Alexe) / 1089